collin



(No Model.) 2 Sheets-Sheet 1.

G. W. COLLIN. ARCH SUPPORT, WATER PUBIPIER, AND HEATER,

Patented Feb. 6, 1894.

INVENTOR WITNESSES.

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2 Sheets-Sheet 2.

(No Model.)

, G W COLLIN ARGH SUPPORT,'WATER PURIPIER, AND HEATER.

Patented Feb. 6, 1894.

INVENTOR Geo/ye 77? 642145.

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cum. LITHGG ma co wunme'rou n c UNITED STATES PATENT EFIQE.

GEORGE WV. COLLIN, OF OORDELE, GEORGIA, ASSIGNOR OF ONE'I'IALF TO JOHN W. BULLA, OF SAME PLACE.

ARCH-SUPPORT, WATER PU RIFIER AND HEATER.

SPECIFICATION forming part of Letters Patent No. 514,349, dated February 6, 1894.

Application and May 1,1893. Serial No. 472,560. (No model.)

To all whom it may concern..-

Be it known that I, GEORGE W. COLLIN, of Oordele, in the county of Dooly and State of Georgia, have invented a new and useful Improvement in Arch-Support, Water Purifier and Heater, of which the following is a specification.

My invent-ion is an improvement in arch supports, water purifiers and heaters and is in the nature of an attachment or apparatus for use in connection with the ordinary boiler,

which will serve as an efficient arch support,

as a feed water heater, as an auxiliary steam generator, and will also efficiently aid in securing the best results in cleaning the boiler by blowing off.

The invention consists in the novel constructions and combinations of parts as will be hereinafter described and pointed out in the claims. t

In the drawings-Figure 1 is a perspective view of theimproved apparatus partly broken away. Fig. 2 is adetail section on about line 2-2 of Fig. 1, and Fig. 3 is a perspective view of a part of a furnace and boiler, the brick work of the furnace being partly broken away.

The boiler A may be of ordinary construction and at the end thereof and immediately over the fines I support what may for convenience of reference be termed the heater B the mud drum O being on a lower level than the heater and all being connected in the manner more fully described hereinafter. The heater B is formed with the end columns or chambers B B and the connecting pipes B The columns B are curved from end to end corresponding to the curvature of the furnace arch and are provided in their inner faces with openings at 12 into which the ends of the pipes 13 are secured by expanding them therein or otherwise as desired. In their outer sides and opposite the openings 12 and the ends of the pipes B 1 form hand holes I) closed in use by the removable cover plates which may be removed to permit access to the interior of the columns or to facilitate cleaning the tubes B as may be desired. Manifestly these cover plates may be of any desired construction and may be secured in any suitable manner.

- may be had to the hand holes.

In use the heater comprising the columns and the connecting pipes is supported by resting its curved end columns upon the walls M of the furnace the outer sides of the said columns being exposed so convenient access When so sup ported the heater forms a firm base support for the furnace arch which may be built directly'npon the end columns and tubes of the heater as will be readily understood. In each of the tubes 13 I place a strip D of sheet copper fitting it in the tube so it will be self supporting by engaging at its edges with the tube and I serrate such edges at (Z to permit the circulation of water past such edges and also to reduce the liability of the plates becoming firmly fastened at their edges to the inside of the tubes by the lime and other deposits. It should be understood that the purpose of these plates D is to take up lime and the like from the water to prevent scale in the boiler the copper plates having a greater atfinity for such scale elements than the metal of the heater and boiler as is well understood. When the plates have become covered with scale they may be replaced by others and if they should be connected at any point to the tubes they may be knocked loose with a slight tap of ahammer. At its upper end the heater is connected by suitable pipes with the steam space of the boiler so the steam generated in the heater will pass into the boiler and directly into the steam space. This connection is preferably efiected by the pipes E leading from the upper ends of the column E and uniting with a single pipe ewhich discharges into the top or upper portion of the boiler as shown.

The mud drum 0 which may generally be ofordinary construction is provided with a copper plate F having serrated edges and fitted in the drum for the purpose of attaching the scale producing elements.

The water or supply pipe G is provided with a valve 9 and has a branch H leading to and opening at 7?. into the bottom of the boiler and is also provided with a branch or portion I loading to the mud drum and having a valve 11.

A pipe J is provided with a valve j and connects the mud drum with the lower end of one of the columns B a pipe K leading from the upper end of the opposite columns 13 and opening at into the boiler at about or just below the lower water line. The mud drum has an escape or discharge pipe L provided with a valve Z.

It will be seen that by my improvement I form a support for the arch of a return flue boiler, or a like arch in similar arrangement foraheater of feed water agenerator of steam, and water purifier and mud separator.

In operation the boiler is filled with water to the water line (valve Z closed, and valve 9' open). The fire is built in furnace, and heat and flames of combustion pass back under boiler,up against pipes B B and back through the boiler tubes. The water in pipes B B quickly becomes heated rises through pipe K into boiler at 70, thus getting up a circulation of water from the bottom of boiler at 72. through pipes H and I, mud trap O and pipe J into distributing columns B B and tubes or pipes 13 13% into boiler through pipe K making a con stant current one way through my device and boiler in one direction up through the arch support or heater and its connections. When feeding water to the boiler from the feed pipe G the water is forced through the pipe Iinto the mud trap C and is taken up by the current formed in the arch support orheater and passes into boiler at 70 at high temperature. The pipes E allow steam to pass the top of columns B B into the steam space of the boiler. The valves 3' and i always remain open, except when cleaning out mud trap 0, when they are closed. When blowing off surface water in the boiler valve '5 is closed and valve 1 is opened.

In blowing ofi water from the bottom of the boiler, valve j is closed and valve Z opened. When cleaning out the mud trap F the valves j and 11 are closed and the head 0' of the mud trap is removed. In. cleaning out columns B B and pipes or tubes B B the cover plates at b are removed, permitting convenient access to such parts.

By my improvement I attain a secure arch support so arranged that the water may freely circulate through it to avoid any burning or bending from overheating, and by the arrangement of pipes connecting the several parts as shown and described I have a constant and free circulation from the bottom of the boiler at h to the upper connection with the boiler at 70 whether feeding or not and it follows up the course taken by the water that is through mud trap and arch support or heater and into the boiler at is heated to steaming point by its passage through thetubular boilers, the improvement, may be used on lime kilns, coke ovens and other furnaces requiring a return arch support.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A water heater and arch support for boilers consisting of the curved end reservoir columns, extended practically from base to crown of the arch and the pipes extending between and communicating at their ends with the said columns substantially as set forth.

2. A water heater and arch support for boilers consisting of the end reservoir columns curved longitudinally and provided in their outer sides with hand openings, closures for such openings, and the tubes connecting said columns and opening into the inner sides thereof opposite the hand openings substantially as set forth.

8. An improved arch support for boiler furnaces which consists of hollow end reservoir columns curved longitudinallyand pipesoonnecting and opening at their opposite ends into said end columns in combination with the boiler and connections between said arch support and boiler substantially as set forth.

at. A combined water heater and arch sup port for boilers which consists of the separate end reservoir columns extended practically from base to crown of the arch, curved longitudinally and provided with water and steam connections and the pipes extending between and communicating at their ends with the said end columns, all substantially as and for the purposes set forth.

5. The combination with the boiler and the mud drum, of the heater having longitudinally curved end columns and cross or connecting tubes opening at their ends into said columns, the water connections, and the steam connections between the upper end of the heater and the steam space of the boiler all substantially as and for the purposes set forth.

6. In combination substantially as described, the boiler, the mud drum and the heater, the feed pipe branched in advance of the mud drum and having separate branches leading to the mud drum and to the boiler, the water pipe connecting the drum and heater, a water pipe connecting the heater and boiler and a steam connection between the upper end of the heater and the steam space of the boiler substantially as set forth.

7. The combination of the boiler, the heater, the drum, the pipe G having branch H and branch I provided with a valve 1', the pipe J connecting the drum and heater and having a valve j and the pipe K connecting the boiler and heater all substantially as described whereby the valves may be manipulated to blow off from the top or bottom of the boiler as and for the purposes specified.

8. In an apparatus substantially as described a sediment accumulating plate formed of copper and having its opposite edges serrated substantially as set forth.

9. The combination substantially as described of the boiler, the heater having curved end columns 13' and connecting tubes E the water pipe K connecting the upper end of the'heater with the boiler, the steam connections leading from the upper end of the heater to the steam space of the boiler, the drum, the pipe J connecting the drum and heater, and the pipe G having branches H and I leading respectively to the boiler and to the drum all substantially as set forth.

10. The combination of the boiler the side '15 supported by said heater substantially as set zo forth.

April 17, 1893.

GEORGE W. COLLIN.

Vitnesses:

V. L. EMERSON, FRED HARDER. 

